JPS6393435A - Three-layer folding sheet for laminated panel core - Google Patents
Three-layer folding sheet for laminated panel coreInfo
- Publication number
- JPS6393435A JPS6393435A JP23773986A JP23773986A JPS6393435A JP S6393435 A JPS6393435 A JP S6393435A JP 23773986 A JP23773986 A JP 23773986A JP 23773986 A JP23773986 A JP 23773986A JP S6393435 A JPS6393435 A JP S6393435A
- Authority
- JP
- Japan
- Prior art keywords
- folding
- stainless steel
- layer folded
- folded sheet
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims description 29
- 239000010935 stainless steel Substances 0.000 claims description 28
- 239000011888 foil Substances 0.000 claims description 15
- 239000011162 core material Substances 0.000 description 27
- 239000000853 adhesive Substances 0.000 description 15
- 230000001070 adhesive effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000009751 slip forming Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用性！？）
本発明は、積層パネルコアの前製品に係り、より詳しく
はステンレススチールコアの積層パネルの製作に使用さ
れる新規な積層パネルコア川三層折りシートに関する。Detailed Description of the Invention (Industrial Applicability!?) The present invention relates to a pre-product of a laminated panel core, and more specifically, a novel laminated panel core river triple layer used in the production of laminated panels with a stainless steel core. Regarding folded sheets.
本発明の三層折りシートより製作される積層パネルは、
航空機や宇宙ロケットの構造材として、また建築物の内
装材、外装材として高い利用価値を有する。The laminated panel manufactured from the three-layer folded sheet of the present invention is
It has high utility value as a structural material for aircraft and space rockets, and as an interior and exterior material for buildings.
（従来の技術）
従来、ハニカムパネル等の積層パネルは、例えば建築物
の天井材、壁材及び床材として、また船舶や航空機の構
造材として利用されている。(Prior Art) Conventionally, laminated panels such as honeycomb panels have been used, for example, as ceiling materials, wall materials, and floor materials for buildings, and as structural materials for ships and aircraft.
そして、従来のハニカムパネルは、ハニカムコア材料と
して、アルミニウム箔、樹脂含浸紙、セルローズエステ
ルシート及びその他のプラスチックシートを使用したも
のであった。特に、アルミニウムコアのハニカムパネル
は、好性性及び生産性の点からよく利用されている。Conventional honeycomb panels use aluminum foil, resin-impregnated paper, cellulose ester sheets, and other plastic sheets as honeycomb core materials. In particular, honeycomb panels with an aluminum core are widely used due to their compatibility and productivity.
（発明が解決しようとする問題点）
しかし、アルミニウムを用いた積層パネルは、水系特に
塩水との接触によって腐食し易く、腐食の進行により強
度が著しく低下するという問題があった。(Problems to be Solved by the Invention) However, a laminated panel using aluminum is easily corroded by contact with aqueous systems, particularly salt water, and has a problem in that its strength is significantly reduced as the corrosion progresses.
一方、紙及びプラスチックからなる積層パネルは、大変
軽量であるが、熱に対して変形し易く、また汗通易燃性
であるという欠点があった。On the other hand, laminated panels made of paper and plastic are very lightweight, but have the drawbacks of being easily deformed by heat, and easily permeable to sweat and flammable.
耐腐食性及び耐熱性の双方を勘案すれば、コア材料とし
てステンレススチール等が最適であると考えられる。し
かし、ステンレススチールコアからなる積層パネルは未
だ開発されていない。Considering both corrosion resistance and heat resistance, stainless steel or the like is considered to be optimal as the core material. However, a laminated panel consisting of a stainless steel core has not yet been developed.
本発明は、ステンレススチールコアの［層ハネルの製作
を可能とする積層パネルコア用三層折りシートを提供す
るものである。The present invention provides a three-layer folded sheet for a laminated panel core that enables the production of layered panels with a stainless steel core.
（問題点を解決するための手段）
本発明は、鋭意研究の結果、ステンレススチール箔を繰
り返し折って所謂ハコヒダを一方向に連続形成し、次に
形成された三層折りシートを接着剤を介して積層成形し
、次いでその積層成形体を適当厚に切断しその後伸展変
形させることにより、ステンレススチールのハニカムコ
アまたはハニカム類似コアが得られることを見い出し、
本発明を完成したのである。(Means for Solving the Problems) As a result of intensive research, the present invention has been developed by folding stainless steel foil repeatedly to form so-called box folds in one direction, and then folding the formed three-layer folded sheet through an adhesive. We have discovered that a stainless steel honeycomb core or a honeycomb-like core can be obtained by laminated molding, then cutting the laminated molded product to an appropriate thickness, and then stretching and deforming it.
The present invention was completed.
本発明の積層パネルコア用三層折りシートは、ステンレ
ススチール消を外折り、内折り。The three-layer folded sheet for the laminated panel core of the present invention is made by folding the stainless steel sheet outward and folding it inward.
内折り及び外折りの順序でかつ各折り目を平行に保って
一方向に繰り返し折り曲げて形成されたものである。It is formed by repeatedly folding in one direction in the order of inward folding and outward folding, keeping each fold line parallel.
ここで、内折りとは、ステンレススチール箔を折り目に
て上方へ曲げその上曲げ部分が同情の基部の上に重なる
ように畳む折り方をいい、また外折りとは、ステンレス
スチール箔を折り目にて下方へ曲げその下曲げ部分が同
情の下に重なるように畳む折り方をいう。Here, "inward folding" refers to a folding method in which the stainless steel foil is bent upward at the crease and folded so that the upper bent part overlaps the base of the fold, and "outward folding" refers to the folding method in which the stainless steel foil is folded upward at the crease. This refers to the folding method in which the fold is folded downward so that the lower bent part overlaps the bottom of the fold.
本発明の三層折りシートは、シート状ステンレススチー
ル箔の表面に平行線の折り目を多数例えば１：２または
１：３の間隔で繰り返し付け、そしてその箔シートを折
り目の所で外折り、内折り、内折り及び外折りの順序で
一方向に繰り返し折り曲げて形成される。すなわち、本
発明の三層折りシートは、所謂ハコヒダが一方向の連続
形成されたものである。ステンレススチール箔の折り曲
げは、紙、金属薄板等の自動折曲装置の機構を応用した
装置を用いて自動的に行なうとよい。The three-layer folded sheet of the present invention is produced by repeatedly making many parallel folds on the surface of a sheet-like stainless steel foil, for example, at an interval of 1:2 or 1:3, and then folding the foil sheet outward at the creases and folding it inwards. It is formed by repeatedly folding in one direction in the order of folding, inward folding, and outward folding. That is, the three-layer folded sheet of the present invention has so-called box folds continuously formed in one direction. The stainless steel foil is preferably folded automatically using a device that applies the mechanism of an automatic folding device for paper, thin metal plates, etc.
本発明の三層折りシートは、ステンレススチールの全く
新規なシート構造物であり、木発明者はこれをＦＳＰと
名付けることとする。The three-layer folded sheet of the present invention is a completely new sheet structure made of stainless steel, which the inventors of the present invention has named FSP.
本発明のステンレススチール箔としては、例えばＪＩＳ
規格に定める各種のステンレス鋼からなる厚さ５０〜１
５０ ＃Ｌｍ、好ましくは５０〜８０ｐｍのａ？４板が
使用される。ステンレススチール箔の代わりに、チタン
（Ｔｉ）箔を使用してもよい。As the stainless steel foil of the present invention, for example, JIS
Thickness 50~1 made of various stainless steels specified in standards
50 #Lm, preferably 50-80pm a? Four plates are used. Titanium (Ti) foil may be used instead of stainless steel foil.
次に、未発明の三層折りシートを用いてｖＬ層パネルコ
アを製作する過程を説明する。まず、接着剤例えば金属
接着用熱硬化性樹脂接着剤を三層折りシートの最も外側
の上下表面（以下、ハコヒゲ外面という）に塗布し、次
に所定数の三層折りシートを接着剤塗布のハコヒダ外面
が対面近接するように積み重ね１次いでこれを加熱加圧
して三層折りシートの積層体を作り、そしてこの積層体
を折り目と直交する方向に所望の厚さに薄切りし、しか
る後この薄切り積層体を積層方向と直交する方向に伸展
変形させ必要により積層方向にも併せて伸展変形させる
ことにより、あるいは最大伸展時面圧を積層方向に加え
たりあるいは伸展に続いて積層体を逆向きに戻り変形せ
しめることにより、ステンレススチールの各種ハニカム
状コアが成形される。而して、成形されたハニカム状コ
アの両面又は片面に金属、ＦＲＰ等の表面材を貼着する
ことにより、ステンレススチールコアの積層パネルが製
作される。Next, a process of manufacturing a vL layer panel core using an uninvented three-layer folded sheet will be described. First, an adhesive, such as a thermosetting resin adhesive for bonding metals, is applied to the outermost top and bottom surfaces of the three-layer folded sheet (hereinafter referred to as the outer surface of the box-beard), and then a predetermined number of three-layer folded sheets are coated with the adhesive. The outer surfaces of the box folds are stacked so that they are close to each other.Then, this is heated and pressed to make a laminate of three-layer folded sheets.The laminate is then sliced to the desired thickness in the direction perpendicular to the fold. By stretching and deforming the laminate in a direction perpendicular to the lamination direction and, if necessary, also stretching and deforming it in the lamination direction, or by applying maximum surface pressure in the lamination direction during stretching, or by turning the laminate in the opposite direction after stretching. Various honeycomb-shaped cores of stainless steel are formed by return deformation. A laminated panel of stainless steel cores is manufactured by attaching a surface material such as metal or FRP to both or one side of the formed honeycomb core.
さらに説明すると、接着剤の塗布の前に、接着剤を塗布
すべき三層折りシート表面に対し、機械的研磨、酸・ア
ルカリ処理あるいは脱脂処理等の前処理を行なうことに
より、表面の活性を高め、接着効果を向上させるとよい
。To explain further, before applying the adhesive, the surface of the three-layer folded sheet to which the adhesive is to be applied is subjected to pretreatment such as mechanical polishing, acid/alkali treatment, or degreasing treatment to increase surface activity. It is recommended that the adhesive strength be increased to improve the adhesion effect.
また、接着剤は、伸展変形によって三層折りシート間剥
離を生じない程の高い接看力を有するものであればよく
１例えばエポキシ系、フェノール系接着剤が利用できる
。Further, the adhesive may be any adhesive as long as it has a high adhesion force that does not cause peeling between the three-layer folded sheets due to stretching deformation. For example, epoxy adhesives and phenolic adhesives can be used.
そして、本発明の三層折りシートを上記のプロセスに用
いるに当り、薄切り積層体の伸展変形条件及び接着剤の
塗布様式等を種々変更することにより、ステンレススチ
ールコアの各セルが矩形、六角形または十四角形あるい
はこれらの類似形等、様々な形状をなす各種のハニカム
状多孔コアが得られる。各コアセルの寸法は、三層折り
シートの折曲部位と隣りの折曲部位との間隔（折り目間
の間隔）により決定される。When using the three-layer folded sheet of the present invention in the above process, each cell of the stainless steel core is shaped into a rectangular or hexagonal shape by variously changing the stretching deformation conditions of the thinly sliced laminate, the adhesive application method, etc. Alternatively, various honeycomb-like porous cores having various shapes such as a tetragon or similar shapes can be obtained. The dimensions of each core cell are determined by the distance between a folded portion of the three-layer folded sheet and an adjacent folded portion (distance between folds).
この間隔の変更設計により、例えばセル径２〜３０＋ａ
ｍ、好ましくは３〜８ｍｍのコアを製作することができ
る。By changing this spacing design, for example, the cell diameter is 2 to 30+a.
m, preferably 3 to 8 mm cores can be produced.
（実施例） 以ｒ、本発明の実施例を図面により説明する。(Example) Hereinafter, embodiments of the present invention will be described with reference to the drawings.
実施例１
この実施例の三層折りシートｌは、第１図に示すように
、厚さ５０舊のステンレススチール箔のシートを、５１
！１１１，１０ＩＱｆｆｉ、５ａ＋ｍ、１０ｍｍ・・・
・・・・・・の間隔で繰り返し続く平行線の折り目にて
、外折り、内折り、内折り及び外折りの順序で繰り返し
折り曲げて、所謂ハコヒダを一方向に連続形成したシー
ト（長さ２１３００１１１１、幅１３００ｍｍ）である
０図中、２は外折り部位、３は内折り部位を示す。Example 1 The three-layer folded sheet l of this example consists of a sheet of stainless steel foil with a thickness of 50 mm and
! 111, 10IQffi, 5a+m, 10mm...
A sheet (length: 213001111 , width 1300 mm) In Figure 0, 2 indicates an outward folding part and 3 indicates an inward folding part.
面して、まず各三層折りシートｌの最も外側の両表面の
ハコヒダ外面４，４に対しバッフィング又は脱脂等の前
処理を行ない、次に前処理された５２０枚の三層折りジ
ートド・・を第２図に示すようにハコヒダ外面４が対面
近接するように積層する。この場合、第５図に示すよう
に、エポキシ系熱硬化型接着剤５を予めハコヒダ外面４
の全体に塗布しておく、そして、積層された５２０枚の
三層折りジートド・・に対し、１７０℃の加熱下、４
ｋｇ／ｃｒｎ’の血圧を積層方向（図中。First, the box fold outer surfaces 4, 4 on both the outermost surfaces of each three-layer folded sheet l were subjected to pretreatment such as buffing or degreasing, and then the pretreated 520 three-layer folded sheets were... are stacked so that the outer surfaces 4 of the box folds face each other and are close to each other as shown in FIG. In this case, as shown in FIG.
Then, 520 stacked three-layer folded sheets were heated at 170℃ for 4 hours.
kg/crn' blood pressure in the stacking direction (in the figure).
Ｐ方向）に６０分ないし１８０分間加えて、接着剤５を
硬化させ三層折りシートの積層体６を作る。接着剤５の
塗布様式は任意であり、例えば接着剤５をハコヒダ外面
４の中央部のみに１列に塗布してもよくまた外面４の左
右両側のみに２列に塗布してもよい。しかる後、三層折
りシートの積層体６を所望の厚さに薄切りし、その薄切
り積層体を積層方向と直交する方向（図中、矢印Ｘ方向
）に、シートの各折り部が開いてシート全体がほぼ上面
に近い形状となるまで、もとの長さの １．５倍ないし
３倍の長さに伸展変形させ、これと併せて上記薄切り積
層体を積層方向（図中、矢印Ｙ方向）に適当な長さ倍率
で伸展変形させる。さらに、最大伸展時、適当な大きさ
の面圧を伸展方向と直交する方向に加える。そして伸展
のための引張り力を解除すると、ステンレススチール箔
固有の高剛性により復元力が働き、積層品全体が収縮し
、第６図及び第７図に示すような、ステンレススチール
のハニカム状多孔コア７ａ、７ｂが製作される。また、
引張り力の解除後、伸展方向と逆方向に加圧して積層体
を戻り変形せしめてもよい、伸展変形過程における諸条
件の変数を変えることにより、様々なセル形状のハニカ
ム状多孔コアが得られる。P direction) for 60 to 180 minutes to cure the adhesive 5 and form a laminate 6 of three-layer folded sheets. The adhesive 5 may be applied in any manner; for example, the adhesive 5 may be applied in one row only to the center of the outer surface 4 of the box folds, or may be applied in two rows only to both left and right sides of the outer surface 4. Thereafter, the three-layer folded sheet laminate 6 is sliced to a desired thickness, and each folded portion of the sheet is opened in a direction perpendicular to the lamination direction (in the direction of arrow X in the figure) to form a sheet. The thinly sliced laminate is stretched and deformed to a length that is 1.5 to 3 times its original length until the entire body has a shape that is close to the top surface. ) at an appropriate length magnification. Furthermore, at the time of maximum extension, an appropriate amount of surface pressure is applied in a direction perpendicular to the direction of extension. Then, when the tensile force for stretching is released, the high rigidity inherent to the stainless steel foil exerts a restoring force, causing the entire laminate to contract, resulting in a stainless steel honeycomb-shaped porous core as shown in Figures 6 and 7. 7a and 7b are manufactured. Also,
After the tensile force is released, the laminate may be deformed back by applying pressure in the opposite direction to the stretching direction. By changing the variables of various conditions in the stretching deformation process, honeycomb-like porous cores with various cell shapes can be obtained. .
実施例２
この実施例の三層折りシートｌａは、第３図に示すよう
に、厚さ５０ＩＬのステンレススチール箔のシートを、
４ｎ＋ｍ、１２ｍｍ、４ａｕｗ、１２ｍ＋ａ−−−の間
隔で繰り返し続く平行線の折り目にて、外折り、内折り
、内折り、及び外折りの順序で繰り返し折り曲げて、所
謂ハコヒダを一方向に連続形成したシートである。Example 2 The three-layer folded sheet la of this example is made of a sheet of stainless steel foil with a thickness of 50IL, as shown in FIG.
The so-called box folds were continuously formed in one direction by repeatedly folding outward, inward, inward, and outward folds in the order of parallel lines repeated at intervals of 4n+m, 12mm, 4auw, 12m+a---. It is a sheet.
この実施例の三層折りシートｌａも、実施例１のと同様
のプロセスに従い、第４図に示すようにハコヒダ外面４
が対面するように積層し、その後積層品を薄切りし、伸
展変形させることにより、様々なセル形状をなす各種の
ステンレススチールのハニカム状多孔コアを製作するこ
とができる。The three-layer folded sheet la of this example was also produced according to the same process as that of Example 1, and the outer surface of the box folds 4 as shown in FIG.
By stacking the laminates so that they face each other, then slicing the laminate and stretching and deforming it, it is possible to produce various types of stainless steel honeycomb-shaped porous cores with various cell shapes.
（発明の効果）
上述したように、本発明の三層折りシートは、ステンレ
ススチール箔の外折り、内折り、内折り及び外折りの連
続折曲構造としたことにより、同シートを用いて様々な
セル形状を有すル各種のハニカム状多孔ステンレススチ
ールコアを製作することができ、従来全く得られなかっ
たステンレススチールコアの積層パネルを完成すること
ができる。(Effects of the Invention) As described above, the three-layer folded sheet of the present invention has a continuous folding structure of outer folding, inner folding, inner folding, and outer folding of stainless steel foil, so that the three-layer folded sheet of the present invention can be used in various ways. It is possible to manufacture various honeycomb-shaped porous stainless steel cores having a cell shape, and it is possible to complete a laminated panel of stainless steel cores, which was previously impossible to obtain.
第１図は本発明の実施例１の三層折りシートを示す図、
第２図は第１図の三層折りシートの積層様式第３図は実
施例２の三層折りシートを示す図、
第４図は第３図の三層折りシートの積層様式第５図は第
１図の三層折りシートの積層成形体を示す図、
第６図及び第７図は第１図の三層折りシートより製作さ
れた積層パネルコアを夫々示す図である。
図中、
１．１ａ・・・三層折りシート
２・・・外折り部位
３・・・内折り部位
４・・・ハコヒダ外面
５・・・接着剤
６・・・積層体
７ａ、７ｂ・・・ステンレススチールのハニカム状多孔
コア
特許出願人 チバーガイギー アクチェンゲゼルシャフ
ト
（ほか２名）
第１図
３、−、 ｌ’ｌ仏りｎ位
゛λコ乃 ステンレススチールのハニカム４尺り孔コア
第２図
第３図
第５図
第６図
第７ＮFIG. 1 is a diagram showing a three-layer folded sheet of Example 1 of the present invention, FIG. 2 is a diagram showing the stacking pattern of the three-layer folded sheet of FIG. 1, and FIG. 3 is a diagram showing a three-layer folded sheet of Example 2. Figure 4 shows the stacking style of the three-layer folded sheet in Figure 3. Figure 5 shows the laminated molded product of the three-layer folded sheet in Figure 1. Figures 6 and 7 show the three-layer folded sheet in Figure 1. FIG. 3 is a diagram illustrating a laminated panel core made from sheets, respectively. In the figure, 1.1a...Three-layer folded sheet 2...Outward folding part 3...Inward folding part 4...Box fold outer surface 5...Adhesive 6...Laminated bodies 7a, 7b...・Stainless steel honeycomb-shaped porous core Patent applicant Civer-Geigy Akchengesellshaft (and 2 others) Fig. 1 3, -, L'l Buddha n position ゛λ kono Stainless steel honeycomb 4-hole core Fig. 2 Figure 3 Figure 5 Figure 6 Figure 7N
Claims (1)
折りの順序でかつ各折り目を平行に保って一方向に繰り
返し折り曲げて形成された積層パネルコア用三層折りシ
ート。A three-layer folded sheet for a laminated panel core formed by repeatedly folding stainless steel foil in one direction in the order of outward folding, inward folding, inward folding, and outward folding, keeping each fold parallel.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23773986A JPS6393435A (en) | 1986-10-06 | 1986-10-06 | Three-layer folding sheet for laminated panel core |
| GB08723179A GB2195953A (en) | 1986-10-06 | 1987-10-02 | Laminated panel having a stainless steel foil core |
| US07/105,071 US4876134A (en) | 1986-10-06 | 1987-10-05 | Laminated panel having a stainless steel foil core and a process for producing the panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23773986A JPS6393435A (en) | 1986-10-06 | 1986-10-06 | Three-layer folding sheet for laminated panel core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6393435A true JPS6393435A (en) | 1988-04-23 |
Family
ID=17019754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23773986A Pending JPS6393435A (en) | 1986-10-06 | 1986-10-06 | Three-layer folding sheet for laminated panel core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6393435A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04210829A (en) * | 1990-12-18 | 1992-07-31 | Sumitomo Light Metal Ind Ltd | Honeycomb structural body |
-
1986
- 1986-10-06 JP JP23773986A patent/JPS6393435A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04210829A (en) * | 1990-12-18 | 1992-07-31 | Sumitomo Light Metal Ind Ltd | Honeycomb structural body |
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